htmx.org

Ranks Overall #943 Developer Tooling #21 Frameworks and Libraries #5

Data from Oct 9, 2026, 10:12 AM UTC 3d old, older than this category's 3 days freshness target Measured every 2 days · 20 runs since Aug 27, 2026

Elsewhere: PageSpeed Insights · Calibre · Treo · CrUX Vis · Tame the Bots · Scoring Calculator · Wayback Machine

This data is 3d old.

Sites are measured on a rolling schedule, so figures here are the newest successful measurement rather than a reading taken just now. Comparisons against other sites may span different points in time.

Lab data is measured using Lighthouse, Mobile mode unless otherwise specified. Field data is reported from Chrome UX Report (using p75 measurements).

Stack

Zo Built with Zola

Uses htmx 2.0.11

Hosted by Netlify

Filmstrip LAB Throttled

How the page drew during the measured load, at 8 points across 3.44 s. Compare this filmstrip against another site.

430 ms
861 ms
1.29 s
1.72 s
2.15 s
2.58 s
3.01 s
3.44 s

Lighthouse Scores LAB Simulated

Performance

↓ -12 (-13.5%)

100

Accessibility

no change

100

Best Practices

no change

100

SEO

no change

Metrics LAB FIELD

Core Web Vitals: passing 3 of 3 assessed from real Chrome users.

Field figures are the p75 across real Chrome users over a 28-day trailing window (2026-09-10 → 2026-10-07), url-level.

Metric	Lab Simulated	Field
LCP CWV Largest Contentful Paint	5.12 s poor	↑ +1426 ms (+38.6%) significant 3.64 s – 5.13 s	1.56 s good	88.8% 7.1% 4.1%
INP CWV Interaction to Next Paint — field only, no lab run can measure it	n/a	—	120 ms good	93.5% 6.1% 0.4%
CLS CWV Cumulative Layout Shift	0 good	→ no change 0 – 0	0 good	96.2% 2.5% 1.3%
TBT Total Blocking Time	0 ms good	→ no change 0 ms – 0 ms	n/a	—
FCP First Contentful Paint	2.60 s needs work	↑ +1382 ms (+113.4%) significant 1.22 s – 3.06 s	1.15 s good	89% 6.5% 4.5%
Speed Index	2.60 s good	↑ +1382 ms (+113.4%) significant 1.22 s – 3.06 s	n/a	—
TTFB Time to First Byte	620 ms good	↑ +1 ms (+0.2%) 605 ms – 642 ms	560 ms good	85% 11.3% 3.7%

Metric

Lab Simulated

Field

Value

Change / range

Trend

p75

Distribution

LCP CWV Largest Contentful Paint

5.12 s poor

↑ +1426 ms (+38.6%) significant 3.64 s – 5.13 s

1.56 s good

88.8% 7.1% 4.1%

INP CWV Interaction to Next Paint — field only, no lab run can measure it

n/a

—

120 ms good

93.5% 6.1% 0.4%

CLS CWV Cumulative Layout Shift

0 good

→ no change 0 – 0

0 good

96.2% 2.5% 1.3%

TBT Total Blocking Time

0 ms good

→ no change 0 ms – 0 ms

n/a

—

FCP First Contentful Paint

2.60 s needs work

↑ +1382 ms (+113.4%) significant 1.22 s – 3.06 s

1.15 s good

89% 6.5% 4.5%

Speed Index

2.60 s good

↑ +1382 ms (+113.4%) significant 1.22 s – 3.06 s

n/a

—

TTFB Time to First Byte

620 ms good

↑ +1 ms (+0.2%) 605 ms – 642 ms

560 ms good

85% 11.3% 3.7%

LCP Subparts LAB Throttled

The subparts attribute LCP to your server, resource discovery, download, or rendering. They come from one throttled load, the same one as the filmstrip, so they add up to that load’s LCP rather than the simulated Lab LCP above.

resource load duration 1.62 s

resource load delay 1.22 s

time to first byte 583 ms

element render delay 20 ms

LCP LAB Simulated vs LCP FIELD

Lab 5.12 s

Field p75 1.56 s

The lab LCP is 3.28× the field p75 — real users likely have above-average hardware or network connectivity.

Page weight

Metric	Value	Change / range
Page Weight	980 kB	↑ +238 B 866 kB – 980 kB
Requests	64	→ no change 55 – 64
Third-party Weight	9.6 kB	↑ +2 B 9.6 kB – 9.7 kB
Third-party CPU	3 ms	↓ -0 ms (-3.6%) 3 ms – 7 ms
Unused JS	23.7 kB	↑ +289 B (+1.2%) 22.8 kB – 23.7 kB
Unused CSS	0 B	→ no change 0 B – 0 B

Metric

Value

Change / range

Trend

Page Weight

980 kB

↑ +238 B 866 kB – 980 kB

Requests

→ no change 55 – 64

Third-party Weight

9.6 kB

↑ +2 B 9.6 kB – 9.7 kB

Third-party CPU

3 ms

↓ -0 ms (-3.6%) 3 ms – 7 ms

Unused JS

23.7 kB

↑ +289 B (+1.2%) 22.8 kB – 23.7 kB

Unused CSS

0 B

→ no change 0 B – 0 B

By resource type

Type	Share	Size	Requests
image	76%	745 kB	45
script	18.6%	182 kB	13
stylesheet	3.7%	36.3 kB	2
document	1.3%	12.6 kB	2
other	0.4%	4.3 kB	2
Total		980 kB	64

Third parties 1 entities

Entity	Transfer	Size	Main thread Simulated
GitHub	scriptother	9.6 kB	3 ms
Total		9.6 kB	3 ms

Entity

Transfer

Size

Main thread Simulated

GitHub

scriptother

9.6 kB

3 ms

Total

9.6 kB

3 ms

Without JavaScript

The same load, photographed twice at 412×823: once with scripts disabled, once as rendered.

1.2% of pixels differ — they are nearly identical. A shifted layout counts as difference, so a <noscript> banner alone can account for a large figure.

Page health

Metric	Value	Change / range
Main Thread Work	972 ms	↑ +319 ms (+48.8%) significant 653 ms – 1.14 s
Long Tasks	1	→ no change 1 – 3
DOM Elements	294	→ no change 289 – 294
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports)	2	→ no change 2 – 2
A11y Failures	1	→ no change 1 – 1
A11y Failing Nodes	1	→ no change 1 – 1

Metric

Value

Change / range

Trend

Main Thread Work

972 ms

↑ +319 ms (+48.8%) significant 653 ms – 1.14 s

Long Tasks

→ no change 1 – 3

DOM Elements

294

→ no change 289 – 294

Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports)

→ no change 2 – 2

A11y Failures

→ no change 1 – 1

A11y Failing Nodes

→ no change 1 – 1

Main thread work

Task	Share	Duration Simulated
other	48%	464 ms
style layout	36%	346 ms
script evaluation	7%	67 ms
paint composite render	4%	37 ms
script parse compile	3%	31 ms
parse HTML	3%	26 ms
Total		972 ms

Task

Time

Duration Simulated

other

48%

464 ms

style layout

36%

346 ms

script evaluation

67 ms

paint composite render

37 ms

script parse compile

31 ms

parse HTML

26 ms

Total

972 ms

Axe violations axe-core 4.13.0, full rule set

2 violating nodes across 2 rules, 649 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

moderate landmark-unique — Landmarks should have a unique role or role/label/title (i.e. accessible name) combination 1 node
Offending element
1. main
```
<main class="c content ">
```
serious scrollable-region-focusable — Scrollable region must have keyboard access 1 node
Offending element
1. pre
```
<pre data-lang="html" style="background-color:#1f2329;color:#abb2bf;" class="language-html ">
```

Accessibility failures 1 of 26 audits

label-content-name-mismatch — Elements with visible text labels do not have matching accessible names. 1 node

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2

Measurement log

Field history 25 weeks

Weekly p75 from the CrUX History API, backfilled in a single request.

Week ending	LCP	INP	FCP	TTFB
2026-10-03	1.52 s	119 ms	1.13 s	549 ms
2026-09-26	1.52 s	119 ms	1.14 s	591 ms
2026-09-19	1.49 s	116 ms	1.14 s	599 ms
2026-09-12	1.51 s	114 ms	1.17 s	602 ms
2026-09-05	1.52 s	114 ms	1.17 s	597 ms
2026-08-29	1.51 s	115 ms	1.19 s	573 ms
2026-08-22	1.53 s	122 ms	1.19 s	563 ms
2026-08-15	1.55 s	126 ms	1.23 s	611 ms
2026-08-08	1.62 s	129 ms	1.26 s	611 ms
2026-08-01	1.70 s	131 ms	1.30 s	647 ms
2026-07-25	1.77 s	130 ms	1.36 s	682 ms
2026-07-18	1.74 s	131 ms	1.32 s	667 ms

Week ending

LCP

INP

CLS

FCP

TTFB

2026-10-03

1.52 s

119 ms

1.13 s

549 ms

2026-09-26

1.52 s

119 ms

1.14 s

591 ms

2026-09-19

1.49 s

116 ms

1.14 s

599 ms

2026-09-12

1.51 s

114 ms

1.17 s

602 ms

2026-09-05

1.52 s

114 ms

1.17 s

597 ms

2026-08-29

1.51 s

115 ms

1.19 s

573 ms

2026-08-22

1.53 s

122 ms

1.19 s

563 ms

2026-08-15

1.55 s

126 ms

1.23 s

611 ms

2026-08-08

1.62 s

129 ms

1.26 s

611 ms

2026-08-01

1.70 s

131 ms

1.30 s

647 ms

2026-07-25

1.77 s

130 ms

1.36 s

682 ms

2026-07-18

1.74 s

131 ms

1.32 s

667 ms

Runs

Every stored run for this URL, newest first.

When	Perf	LCP	Weight	Runs	Spread	Bench	Took	Archive
Oct 9, 2026, 10:12 AM UTC	77	5.12 s	980 kB	3/3	±5	2,483 0%	51.2s	Wayback
Oct 6, 2026, 11:21 PM UTC	89	3.69 s	980 kB	3/3	±15	4,096 +65%	48.9s	Wayback
Oct 3, 2026, 11:40 PM UTC	76	5.11 s	979 kB	3/3	±14	2,484 0%	50.6s	Wayback
Oct 1, 2026, 8:07 PM UTC	80	5.13 s	979 kB	3/3	±13	2,482 0%	55s	Wayback
Sep 29, 2026, 5:45 PM UTC	81	5.12 s	979 kB	3/3	±8	2,478 0%	52.5s	Wayback
Sep 26, 2026, 9:17 AM UTC	75	5.11 s	979 kB	3/3	±15	2,481 0%	50.9s	Wayback
Sep 24, 2026, 7:14 AM UTC	76	5.11 s	979 kB	3/3	±7	2,485 0%	54.9s	Wayback
Sep 22, 2026, 3:34 AM UTC	81	4.97 s	979 kB	3/3	±15	2,911 +17%	57s	Wayback
Sep 18, 2026, 8:36 PM UTC	76	5.11 s	978 kB	3/3	±3	2,481 0%	52.2s	Wayback
Sep 16, 2026, 6:40 PM UTC	79	5.06 s	979 kB	3/3	±13	2,314 -7%	52.2s	Wayback
Sep 14, 2026, 5:55 PM UTC	77	4.83 s	979 kB	3/3	±7	2,470 -1%	52.9s	Wayback
Sep 12, 2026, 6:55 AM UTC	77	4.82 s	976 kB	3/3	±3	2,493 0%	52.2s	Wayback
Sep 10, 2026, 5:38 AM UTC	85	4.24 s	866 kB	3/3	±7	3,379 +36%	32.2s	Wayback
Sep 8, 2026, 12:56 AM UTC	83	4.21 s	866 kB	3/3	±8	2,464 -1%	25.8s	Wayback
Sep 6, 2026, 12:38 AM UTC	83	4.21 s	866 kB	3/3	±2	2,489 0%	26s	Wayback
Sep 4, 2026, 10:45 AM UTC	83	4.21 s	866 kB	3/3	±8	2,473 -1%	25.6s	Wayback
Sep 3, 2026, 1:09 AM UTC	89	3.64 s	866 kB	3/3	±12	2,482 0%	29.4s	Wayback
Sep 1, 2026, 11:24 PM UTC	85	4.23 s	866 kB	3/3	±8	3,323 +34%	27.7s	Wayback
Aug 31, 2026, 10:31 PM UTC	85	4.21 s	866 kB	3/3	±12	2,486 0%	26.4s	Wayback
Aug 27, 2026, 6:59 PM UTC	83	4.21 s	866 kB	3/3	±6	2,499 0%	27.7s	Wayback

When

Scores

Perf

LCP

CLS

TBT

Weight

Runs

Spread

Bench

Took

Stack

Filmstrip LAB 🐢 Throttled

Lighthouse Scores LAB 🤖 Simulated

Metrics LAB FIELD

LCP Subparts LAB 🐢 Throttled

LCP LAB 🤖 Simulated vs LCP FIELD

Page weight

By resource type

Third parties 1 entities

Without JavaScript

Page health

Main thread work

Axe violations axe-core 4.13.0, full rule set

Accessibility failures 1 of 26 audits

Hygiene

Measurement log

Field history 25 weeks

Runs

Filmstrip LAB Throttled

Lighthouse Scores LAB Simulated

LCP Subparts LAB Throttled

LCP LAB Simulated vs LCP FIELD